Trap Water with Holes!

You can keep water inside a glass by covering the top of the glass with a piece of cardboard full of holes!

To trap water with holes you need:

• a glass
• water
• thin cardboard
• thumbtack or small sharp nail

Directions:

1. Poke lots of holes into the bardboard with a thumbtack or nail.
2. Fill the glass with water untill it is over-flowing.
3. Press the cardboard over the top of the glass until water squishes through the holes.
4. While still pressing the cardboard over the top of the glass, turn the glass upside down.
5. Take away your hand. The carboard sticks to the mouth of the glass and the water doesn't drip through the holes.

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• Fun Science Activities for Kids - used with permission

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